Your BeamMP server will not start without an auth key

BeamMP refuses to start a server without its own auth key, even a private one. Get a free key at keymaster.beammp.com, paste it on your server's Overview page or in Settings, and click Start again.

What you see

The server goes back to Offline a moment after Start, and the Console shows a box:

The BeamMP server will not start without an auth key.

It says to create a key at keymaster.beammp.com under Keys, paste it into Auth Key (the BeamMP Auth Key field in Settings), and press Start again. On Overview, the card Your server needs one more thing asks for the key, and the BeamMP server list card says No key: BeamMP-Server does not start without a key, even for a private server. Paste one to go on.

Fix it

1. Create a key at keymaster.beammp.com under Keys and copy it: How to get a BeamMP auth key for your server.
2. On Overview, paste it in the Your server needs one more thing card and click Save, or in step 1 of the Go live card, or in the BeamMP server list card and click Save key.
3. Click Start.

The Console then shows Vehicle data network online and the badge says Online.

If you saved a key and it still happens

• The key was saved on another server. Each server has its own BeamMP Auth Key in Settings, Game Settings: check it is filled in on this one.
• Someone emptied the field. Paste the key again.

Good to know

• Typing the key into ServerConfig.toml does not help: the panel writes that file from Settings at every start.
• A key with the wrong shape is refused by the panel when you save it. A key BeamMP does not accept lets the server start, but it is not listed: BeamMP refused your server auth key.